An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

Fourfold; consisting of four parts.

M.E. from L. quadruplus, from quadru- + duple, from duplus, from du(o) "two" + -plus "fold."

Cahârtâ, from cahâr, → four, cognate with L. quattuor, + tâ "fold, plait, ply; piece, part" (Mid.Pers. tâg "piece, part").

A stellar system consisting of four stars orbiting around a common → center of mass.

→ quadruple; → system.